Aristotle insists that man is either a political animal (the natural state) or an outcast like a “bird which flies alone” (4thC BC)

In his Politics, Aristotle believed man was a "political animal" because he is a social creature with the power of speech and moral reasoning:

Hence it is evident that the state is a creation of nature, and that man is by nature a political animal. And he who by nature and not by mere accident is without a state, is either above humanity, or below it; he is the ‘Tribeless, lawless, hearthless one,’ whom Homera denounces—the outcast who is a lover of war; he may be compared to a bird which flies alone.

Hence it is evident that the state is a creation of nature, and that man is by nature a political animal. And he who by nature and not by mere accident is without a state, is either above humanity, or below it; he is the ‘Tribeless, lawless, hearthless one,’ whom Homera denounces—the outcast who is a lover of war; he may be compared to a bird which flies alone.

Now the reason why man is more of a political animal than bees or any other gregarious animals is evident. Nature, as we often say, makes nothing in vain, and man is the only animal whom she has endowed with the gift of speech. And whereas mere sound is but an indication of pleasure or pain, and is therefore found in other animals (for their nature attains to the perception of pleasure and pain and the intimation of them to one another, and no further), the power of speech is intended to set forth the expedient and inexpedient, and likewise the just and the unjust. And it is a characteristic of man that he alone has any sense of good and evil, of just and unjust, and the association of living beings who have this sense makes a family and a state.

About this Quotation:

Aristotle’s statement that man is a “political animal” can be taken in a number of ways. One reading is to say that man is naturally sociable (the Pufendorf-Grotius line) and that they are naturally drawn to various political associations in order to satisfy their social needs. Another reading, which sees the word “political” in a less charitable light, might state that, since politics is based upon violence and threats of violence, the phrase emphasises the “animal” side of human nature rather than its rational and cooperative side. Those who turn their back on the violence inherent in politics, in Aristotle’s view, also turn their back on society - they declare themselves to be outlaws, without a “tribe”, and without a heart. His likening them to a “bird which flies alone” reminds me of the Rudyard Kipling story in The Just So Stories (1902) about “The Cat who walked by Himself”, because he of all the wild animals refused to be domesticated by human beings. Of course, there is also Robert Frost’s poem “The Road not Taken” (1920) with the line about choosing “the one less traveled by”. Is this such a bad thing?